diff options
| -rw-r--r-- | drivers/rtc/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 35f34665e3c4..505f512ac254 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -38,6 +38,9 @@ config RTC_HCTOSYS_DEVICE clock, usually rtc0. Initialization is done when the system starts up, and when it resumes from a low power state. + The driver for this RTC device must be loaded before late_initcall + functions run, so it must usually be statically linked. + This clock should be battery-backed, so that it reads the correct time when the system boots from a power-off state. Otherwise, your system will need an external clock source (like an NTP server). |